CVE-2020-1123
Status: ModifiedMedium (5.5)—
A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could cause a system to stop responding. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability. The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Base score: 5.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.09%
- Percentile among all scored CVEs: 65
- Score date: 10/17/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (3)
CWEs
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
{
"id": "CVE-2020-1123",
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"published": "2020-05-21T23:15:15.603",
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1123",
"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1123",
"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
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"vulnStatus": "Modified",
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"description": [
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"lang": "en",
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"lang": "en",
"value": "A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could cause a system to stop responding.\nTo exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability.\nThe security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations."
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad denegación de servicio cuando Connected User Experiences y Telemetry Service maneja inapropiadamente las operaciones de archivos, también se conoce como \"Connected User Experiences and Telemetry Service Denial of Service Vulnerability\". Este ID de CVE es diferente de CVE-2020-1084."
}
],
"lastModified": "2026-08-19T17:17:20.603",
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